MX2023008914A - Lamina de acero y union soldada. - Google Patents

Lamina de acero y union soldada.

Info

Publication number
MX2023008914A
MX2023008914A MX2023008914A MX2023008914A MX2023008914A MX 2023008914 A MX2023008914 A MX 2023008914A MX 2023008914 A MX2023008914 A MX 2023008914A MX 2023008914 A MX2023008914 A MX 2023008914A MX 2023008914 A MX2023008914 A MX 2023008914A
Authority
MX
Mexico
Prior art keywords
steel sheet
concentration
measurement points
sheet thickness
tensile strength
Prior art date
Application number
MX2023008914A
Other languages
English (en)
Inventor
Yuya Suzuki
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of MX2023008914A publication Critical patent/MX2023008914A/es

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
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    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
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    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
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    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
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    • C21—METALLURGY OF IRON
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    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
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    • C21D8/0226—Hot rolling
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    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
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    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
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    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • C—CHEMISTRY; METALLURGY
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    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/285—Thermal after-treatment, e.g. treatment in oil bath for remelting the coating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/009—Pearlite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

Una lámina de acero tiene una composición química predeterminada, cuando el espesor de la lámina se denota por t, una estructura metalográfica en la posición t/4, que es una posición t/4 alejada de una superficie, en una sección transversal en la dirección del espesor de la lámina incluye, en porcentaje en volumen, ferrita: 20% o más, bainita y martensita: 40% o más en total, y un resto que consta de uno o más seleccionados entre austenita y perlita residuales, cuando se mide una concentración de Mn en una pluralidad de puntos de medición a intervalos de 1 µm en una región cuadrada con una longitud lateral de t/4 centrada en la posición t/4 en la sección transversal en la dirección del espesor de la lámina, una proporción de puntos de medición en los que la concentración de Mn es 1.1 veces o mayor una media de las concentraciones de Mn en toda la pluralidad de puntos de medición es inferior a 10.0%, la resistencia a la tracción es 980 MPa o superior, y el producto de la resistencia a la tracción y el alargamiento total es 10,500 MPa·% o superior.
MX2023008914A 2021-03-25 2022-02-18 Lamina de acero y union soldada. MX2023008914A (es)

Applications Claiming Priority (2)

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JP2021051017 2021-03-25
PCT/JP2022/006706 WO2022202020A1 (ja) 2021-03-25 2022-02-18 鋼板及び溶接継手

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US (1) US20240141467A1 (es)
EP (1) EP4265752A4 (es)
JP (1) JPWO2022202020A1 (es)
KR (1) KR20230128531A (es)
CN (1) CN116917518A (es)
MX (1) MX2023008914A (es)
WO (1) WO2022202020A1 (es)

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Publication number Priority date Publication date Assignee Title
JPS535149U (es) 1976-06-29 1978-01-18
JPH06128688A (ja) 1992-10-20 1994-05-10 Sumitomo Metal Ind Ltd 疲労特性に優れた熱延鋼板およびその製造方法
JPH11128688A (ja) 1997-10-29 1999-05-18 Sumitomo Metal Mining Co Ltd 排ガス浄化方法
JP4267367B2 (ja) * 2002-06-19 2009-05-27 新日本製鐵株式会社 原油油槽用鋼およびその製造方法、原油油槽およびその防食方法
JP4320198B2 (ja) * 2003-03-28 2009-08-26 日新製鋼株式会社 衝撃特性と形状凍結性に優れた高強度冷延鋼板の製造方法
JP5245475B2 (ja) * 2008-03-14 2013-07-24 新日鐵住金株式会社 鋼板およびその製造方法
JP5412746B2 (ja) * 2008-04-22 2014-02-12 新日鐵住金株式会社 溶接性と伸びフランジ性の良好な高強度鋼板
JP5305149B2 (ja) 2009-01-05 2013-10-02 新日鐵住金株式会社 成形性に優れた溶融亜鉛めっき高強度鋼板およびその製造方法
WO2017109542A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength steel sheet having improved ductility and formability, and obtained steel sheet
WO2017109541A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength coated steel sheet having improved ductility and formability, and obtained coated steel sheet
KR102173601B1 (ko) * 2016-08-10 2020-11-03 제이에프이 스틸 가부시키가이샤 고강도 박강판 및 그 제조 방법
JP7340245B2 (ja) 2019-09-25 2023-09-07 株式会社アールエフ 放射線遮蔽方法、放射線遮蔽構造、鉛玉入り粘土
CN115735015B (zh) * 2020-06-25 2024-01-26 杰富意钢铁株式会社 凸焊接头和凸焊方法

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JPWO2022202020A1 (es) 2022-09-29
EP4265752A1 (en) 2023-10-25
EP4265752A4 (en) 2024-05-22
KR20230128531A (ko) 2023-09-05
WO2022202020A1 (ja) 2022-09-29
CN116917518A (zh) 2023-10-20

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